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:100227602(2006)06200072051,2(1.,266031;2.,100844):,:;;;;:U270.331+.2:B,,:,;,,,11.1,30t,(:2006204203:(19612),,AAR)AAR,,,,AARBCDEFG,,,,,,AAR,,EFGLKM,KAAR,,AARBC:aij=nk=15fk05bi5fk05bj(i,j=1,2,,m)aiy=nk=15fk05bi(yk-fk0)(i=1,2,,m)(10):=-37123,=251321,K=010215444,;:[1].[M].:,1986.[2],.[M].:,1997.[3],,.[J].,2001,21(4):105108.(:)7446200661RE2RE2ARE2B31.225tRE2,1956mm,135mm,,,RE21998RE2A,1981mm,125mmRE2,,;,;,R25mmR40mm,311%;RE2RE2RE2A,,,21,,,200570tRE2B,1981mm,110mm,,,RE2B1,,,,RE2RE2ARE2B311.3EN13103:2001,AAREFKRE2RE2ARE2BRD2RD2B()()1/3,1.3.122::P1=(01625+010875h1/b)m1g:P2=(01625-010875h1/b)m1g:Y1=0135m1g:Y2=01175m1g:H=Y1-Y2=01175m1g:m1,;844620066h1;2b1.3.2(1):Mx=P1y(2):Mx=FfyMy=0Mz=Ff(1+)y:Ff1;;yP1(3):MR=[(Mx+Mx)2+My2+Mz2]1/21.3.3=KMR/W:W,W=d3/32;d;K,EN13103:20015,r/dD/d,,r,DEN13103:2001A1N100MPa,LZWAARFA1N,A1N11/t/mm/mm/mm/mm/MPaE24.9150.8144.542235.21981.285.081.18F32.4163.5157.242276.52006.693.631.07K32.4123.3157.242213.82006.667.161.49RE2251351502166195674.141.35RE2A251251502191198163.541.57RE2B251101502181198154.671.83RD2211251302146195692.771.08RD2B211001302146195668.181.471,,,KF2813%,RE2BRE2ARE21410%2613%,1.4EN13103:2001,,RE2B(3);22mmE1.514-1.241-1.8411.305F1.144-1.171-1.7181.200K1.148-1.150-1.5600.898RE20.876-0.835-1.1650.756RE2A0.918-0.900-1.2430.751RE2B0.918-0.896-1.2200.682RD20.978-0.887-1.2310.786RD2B0.978-0.874-1.2070.68232,,,;,2,,,RE2BRD2BKF2512%;RE2BRE2RE2A918%912%,,,2,,9,,,,,(AAR),,,,,,42.1,()(4(a)(b)):(1),,,70(2),,(3),,,,1,,,,,,(4),(5),(TIMKEN),,2.2,,SKFLL,,,22(4(c))TIMKENHDL,,,22,(4(d)),,,43,1(4(e))(a)SKFTIMKENNSKNTN;(b)FAG;(c)SKF;(d)TIMKEN;(e);(f)NTN;(g)SKF;(h)TIMKEN;(i);(j)40144620066NTN,,(4(f)),,,,,,,NTN,2.3,,,,,,,,,,,(4(g)(h)(i)(j))4(g)(h)(i),,,,,;,SKF,4(j)353130X22RZ,,,,,:TIMKEN,3RE2B3RE2BRE2B4(g)(SKF),4(i)(j)()RE2B(RAMS),RE2A,K5K64(j)20056,20059,20052500,,;4(g)SKF,20063,20065RE2B,,4RE2BRE2B21tRD2352226X22RZ30t21tRD2B,1956mm,RD2125mm100mm,(12),RD2BRD226.5%,1312%,R20mmR25mm,2.3%,,5,,,25tRE2B,,,,(:)11,ABSTRACTResearchonPredictionoftheFatigueLifeofWeldingStructuresonFreightCarsXIESu2ming,etal.(female,bornin1965,professor,VehicleEngi2neeringCAD/CAETechnicalCenterofDalianJiao2tongUniversity,Dalian116028,China)Abstract:AccordingtostandardsoftheInterna2tionalWeldingSocietyandBritishStandards,withthefiniteelementsstaticstrengthresultsandtheac2tuallymeasuredloadspectrum,thefatiguelifecom2parisonanalysisismadeforthemodesoftypicalwel2dedjointsatkeypartsofanexportedcoalcarbody.Theresultsshowthattheproperselectionofmodesofweldedjointsandweldingtechnologiescandoubleimprovethefatiguelifeofstructures.Keywords:freightcar;finiteelementanalysis;fatiguelife;predictionTestandResearchonFatigueLoadSpectrumofAxlesforSpeedIncreasedPassengerCarsZHANGRui2ting,etal.(male,bornin1964,seniorengineer,CSRSi2fangLocomotives&RollingStockCo.,Ltd.,Qing2dao266111,China)Abstract:Onthebasisoftheactualmeasurementofthewholestress2timecourseatthereliefgroovesofaxlesforpassengercars,thestressspectrumisob2tainedaftertherain2flowcounting;Theloadcalcula2tionismadewiththefiniteelementmethodandtheloadspectrumisobtained;Andtheloaddistributionfeaturesandregulationsareanalyzedwiththerelia2bilitytheory.Keywords:passengercar;axle;fatigue;loadspectrumTechnicalDevelopmentofAxlesandBearingsforHeavyHaulRailwayFreightCarsinOurCountryDIAOKe2jun,etal.(male,bornin1961,seniorengineer,ResearchandTestingDepartmentofCNRSifangRollingStockResearchInstitute,Qingdao266031,China)Abstract:Thegeneralconditionsofaxlesandbearingsforheavyhaulfreightcarsabroadarede2scribed.Thetechnicaldevelopmentsofaxlesandbearingsforheavyhaulrailwayfreightcarsinourcountryarediscussed.Keywords:freightcar;axle;bearings;tech2nique;developmentAnalysisoftheRollingStockDispatchingandManagementSystematPresentinOurCountryandSomeTentativeIdeasHOUYa2jie,etal.(male,bornin1973,engineer,FreightCarDe2partmentofEquipmentSectionofMORTransporta2tionBureau,Beijing100844,China)Abstract:Inviewofthegeneralconditionsoftherollingstockdispatchingandmanagementsystematpresentinourcountry,itisexpoundedandanalyzedinsuchaspectsasthecomposition,category,con2tentsandsystemoftherollingstockdispatchingandmanagementsystem,andsometentativeideasaregiven.Keywords:rollingstock;dispatching;manage2mentsystem;tentativeideaBriefDescriptionofReformoftheAuxiliaryRepairSystemforRailwayFreightCarsinOurCountryYUANSheng2li,etal.(male,bornin1972,engineer,DispatchingSta2tionofZhengzhouRailwayBureau,Zhengzhou450052,China)Abstract:Inviewoftheproblemsexistingintheinspectionandrepairsystemforfreightcarsinourcountryatpresent,thesystemreformschemetocan2celtheauxiliaryrepairoffreightcarsisputforward,anditisexpoundedfairlycompletely.Furthermore,theunfavorablefactorsthatmaycomeaftercancelingtheauxiliaryrepairclassoffreightcarsareanalyzed,andrelevantrequirementsaregivenonsuchaspectsasmanufacture,overhaul,depotrepair,stationre2pairandoperation.Keywords:railwayfreightcar;inspectionandrepair;reformofrepairsystemApplicationoftheQuadricCrankMechanismontheThree2PiecedCastSteelBogiesSHAOWen2dong,etal.(male,bornin1974,engineer,TechnicalCenterofCNRQ